CN103602991B - Compound corrosion inhibitor, preparation method and application thereof - Google Patents
Compound corrosion inhibitor, preparation method and application thereof Download PDFInfo
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- CN103602991B CN103602991B CN201310578267.4A CN201310578267A CN103602991B CN 103602991 B CN103602991 B CN 103602991B CN 201310578267 A CN201310578267 A CN 201310578267A CN 103602991 B CN103602991 B CN 103602991B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 91
- 230000007797 corrosion Effects 0.000 title claims abstract description 90
- 239000003112 inhibitor Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims description 14
- 150000001875 compounds Chemical class 0.000 title abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 15
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 15
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 15
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 15
- 150000003751 zinc Chemical class 0.000 claims abstract description 9
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 57
- 238000002156 mixing Methods 0.000 claims description 13
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical group [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 8
- 235000010235 potassium benzoate Nutrition 0.000 claims description 8
- 239000004300 potassium benzoate Substances 0.000 claims description 8
- 229940103091 potassium benzoate Drugs 0.000 claims description 8
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical group [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 6
- 235000010234 sodium benzoate Nutrition 0.000 claims description 6
- 239000004299 sodium benzoate Substances 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 229960001763 zinc sulfate Drugs 0.000 claims description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 6
- 150000001558 benzoic acid derivatives Chemical class 0.000 claims description 4
- 229940050390 benzoate Drugs 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract description 22
- 239000004312 hexamethylene tetramine Substances 0.000 abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 239000012736 aqueous medium Substances 0.000 abstract 1
- GXCSNALCLRPEAS-CFYXSCKTSA-N azane (Z)-hydroxyimino-oxido-phenylazanium Chemical compound N.O\N=[N+](/[O-])c1ccccc1 GXCSNALCLRPEAS-CFYXSCKTSA-N 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 13
- 239000010962 carbon steel Substances 0.000 description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 230000000116 mitigating effect Effects 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920006334 epoxy coating Polymers 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- JMTIXSZQYHAMLY-UHFFFAOYSA-N [P].[Zn] Chemical group [P].[Zn] JMTIXSZQYHAMLY-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 208000008127 lead poisoning Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a compound corrosion inhibitor, which is prepared from the following components in parts by weight: 20-50 parts of ammonium N-nitroso-phenyl hydroxylamine, 5-30 parts of benzoate, 1-20 parts of zinc salt, 10-20 parts of hexamethylenetetramine and 0-15 parts of sodium hexametaphosphate. The compound corrosion inhibitor disclosed by the invention has the advantages of no hexavalent chromate and heavy metal elements, no toxicity and pollution and so on. Once the compound corrosion inhibitor is applied to a coating, the corrosion resistance of the coating can be improved; the compound corrosion inhibitor is capable of greatly retarding the corrosion of steel and iron materials in a corrosive aqueous medium.
Description
Technical field
The present invention relates to metal corrosion and protection field, particularly relate to a kind of composite corrosion inhibitor and its preparation method and application.
Background technology
At present, metal and alloy are still most important structured material, and according to thermodynamic (al) viewpoint, most metal all has the tendency that spontaneous transformation is oxide compound, and therefore metal is inevitable by corrosion.Corrode the financial loss caused and account for 2 ~ 4% of total value of production in national economy.Coating and inhibiter technology are the important channels solving etching problem.Inhibiter may be used solely to slow down corrosion of metal, and in coating, usually with the addition of some effective inhibiter to improve the anti-corrosion capability of coating.
In coating, conventional rust-stabilising pigment is phosphorus zinc white Zn
3(PO
4)
2nH
2o, barium metaborate Ba (BO
2)
2, the yellow CaCrO of calcium
4, strontium yellow SrCrO
4, zinc-chrome yellow 4ZnOCrO
3k
2o3H
2o, red lead Pb
3o
4, iron oxide red Fe
3o
4deng, the consistency of these inorganic rust-stabilising pigments and resin film forming matter is poor, often causes coating to there is the microdefects such as micropore, causes during practical application and can not produce a desired effect.The hexavalent chromate used in coating has very strong toxicity, deals with the pollution that can cause environment improperly and to body harm.Expressly provide in European Union ROHS instruction that content of 6-valence Cr ions can not more than 0.1%, and the content containing chrome pigment used in coating industry is far longer than this concentration.In addition, Red lead can cause environmental pollution and lead poisoning.Therefore the alternative poisonous and harmful rust inhibition color stuffing of exploitation is significant.
Inhibiter conventional in water medium is chromic salt, there is the problem of contaminate environment equally.
Summary of the invention
Based on this, be necessary to provide a kind of preparation technology simple, the remarkable and free of contamination composite corrosion inhibitor of corrosion mitigating effect.
A kind of composite corrosion inhibitor, by weight, is configured by the composition of following content and forms: 20 ~ 50 parts of cupferros, 5 ~ 30 parts of benzoates, 1 ~ 20 part of zinc salt, 10 ~ 20 parts of hexamethylenetetramines, 0 ~ 15 part of Sodium hexametaphosphate 99.
Wherein in an embodiment, by weight, formed by the composition configuration of following content: 30-40 part cupferro, 10 ~ 20 parts of benzoates, 5 ~ 10 parts of zinc salts, 12 ~ 15 parts of hexamethylenetetramines, 5 ~ 10 parts of Sodium hexametaphosphate 99s.
Wherein in an embodiment, described zinc salt is zinc nitrate or zinc sulfate.
Wherein in an embodiment, described benzoate is Sodium Benzoate or potassium benzoate.
Another object of the present invention is to the preparation method that a kind of composite corrosion inhibitor is provided, comprise the following steps:
Take each component in proportion, put into after pre-mixing pulverizing mill mixing and levigate to 200 ~ 500 orders, to obtain final product.
Another object of the present invention is to provide a kind of coating, described coating comprises containing the obtained composite corrosion inhibitor of aforesaid method.
Above-mentioned composite corrosion inhibitor containing hexavalent chromate and heavy metal element, does not have the advantages such as nontoxic pollution, and preparation method is simple, is applied to the corrosion resistance nature that can improve coating in coating, greatly can slows down the corrosion of ferrous materials in corrosive water medium.
Accompanying drawing explanation
Fig. 1 is the corrosion mitigating effect of Composite Inhibitor Carbon Steel in 3.5%NaCl solution in embodiment 2.
Embodiment
Below with reference to embodiment and accompanying drawing, the invention will be further described.
Embodiment 1
Present embodiments provide a kind of composite corrosion inhibitor, by weight, configured by the composition of following content and form: 300gN-nitrosophenylhydroxylamine, 100g Sodium Benzoate, 100g zinc sulfate, 100g hexamethylenetetramine.
The preparation method of a kind of composite corrosion inhibitor that the present embodiment provides is as follows: take 300gN-nitrosophenylhydroxylamine, 100g Sodium Benzoate, 100g zinc sulfate, 100g hexamethylenetetramine, put into stainless steel cask and carry out stirring pre-mixing.The composite corrosion inhibitor of pre-mixing is put into pulverizing mill levigate to 300 orders, taking-up composite corrosion inhibitor is put into airtight container and is stored.
Get above-mentioned composite corrosion inhibitor 2g, get E44 epoxy resin and the 5772 epoxy curing agent 100g of Shanghai Resin Factory Co., Ltd.'s production, after stirring, prepare epoxy coating.Composite corrosion inhibitor can improve the corrosion resistance nature of coating.
Do not add the epoxy resin varnish of inhibiter through 700h salt air corrosion, Q235 structural carbon steel under coating there occurs corrosion, surface has red rust to occur, and adds the coating resisting salt fog corrosion of 2% composite corrosion inhibitor more than 1000h, and the Q235 structural carbon steel under coating corrodes.By simultaneous test, can show that the corrosion mitigating effect of the composite corrosion inhibitor in the present embodiment is good.
In the present invention, the effect of Sodium hexametaphosphate 99 is to form insoluble precipitation membrane at steel surface after water enters coating, forms precipitation passivation, and then stops the further corrosion of material.Not containing Sodium hexametaphosphate 99 in the present embodiment, the effect of its passivation iron and steel iron and steel can be realized by the cupferro in inhibiter, has similar corrosion mitigating effect.
Embodiment 2
Present embodiments provide a kind of composite corrosion inhibitor, by weight, configured by the composition of following content and form: 35gN-nitrosophenylhydroxylamine, 15g potassium benzoate, 8g zinc nitrate, 14g hexamethylenetetramine, 8g Sodium hexametaphosphate 99.
The preparation method of a kind of composite corrosion inhibitor that the present embodiment provides is as follows: take 435gN-nitrosophenylhydroxylamine, 15g potassium benzoate, 8g zinc nitrate, 14g hexamethylenetetramine, 8g Sodium hexametaphosphate 99 put into tetrafluoroethylene bucket and carry out stirring pre-mixing.The composite corrosion inhibitor of pre-mixing is put into pulverizing mill levigate to 200 orders, taking-up composite corrosion inhibitor is put into airtight container and is stored.
Get above-mentioned composite corrosion inhibitor 0.5g, put into the 1000g3.5%NaCl aqueous solution, the erosion rate of Q235 structural carbon steel can be slowed down.See Fig. 1, for same in the 3.5%NaCl aqueous solution, with or without the extent of corrosion of Q235 structural carbon steel adding composite corrosion inhibitor.Ordinate zou is the reduction of steel product quality in unit surface in the unit time, the Q235 bar graph on the left side is not for add composite corrosion inhibitor, the Q235inhibitors bar graph on the right is for adding composite corrosion inhibitor, can significantly learn from figure, composite corrosion inhibitor has good corrosion inhibition to ferrous materials in corrosive medium.By simultaneous test, can show that the corrosion mitigating effect of the composite corrosion inhibitor in the present embodiment is good.
Embodiment 3
Present embodiments provide a kind of composite corrosion inhibitor, by weight, configured by the composition of following content and form: 400gN-nitrosophenylhydroxylamine, 300g Sodium Benzoate, 200g zinc sulfate, 150g hexamethylenetetramine, 100g Sodium hexametaphosphate 99.
The preparation method of a kind of composite corrosion inhibitor that the present embodiment provides is as follows: take 400gN-nitrosophenylhydroxylamine, 300g Sodium Benzoate, 200g zinc sulfate, 150g hexamethylenetetramine, 100g Sodium hexametaphosphate 99, put into plastic tank and carry out stirring pre-mixing.The composite corrosion inhibitor of pre-mixing is put into pulverizing mill levigate to 200 orders, taking-up composite corrosion inhibitor is put into airtight container and is stored.
Get above-mentioned composite corrosion inhibitor 1g, put into the 2000g3.5%NaCl aqueous solution, can slow down the erosion rate of Q345 carbon structure steel curved beam, inhibition efficiency is 92.1%.
Get above-mentioned composite corrosion inhibitor 10g, the 200gE51 epoxy resin produced with Shanghai Resin Factory Co., Ltd. and 5772 epoxy curing agents stir rear preparation coating, and inhibiter can improve the salt spray corrosion resistance of coating.
Do not add the epoxy resin varnish of inhibiter through 650h salt mist experiment, Q345 structural carbon steel under coating there occurs corrosion, surface has red rust to occur, and application adds the Q345 structural carbon steel of above-mentioned 5% composite corrosion inhibitor through 1000h salt air corrosion, coating is intact, and the Q345 structural carbon steel under coating corrodes.By simultaneous test, can show that the corrosion mitigating effect of the composite corrosion inhibitor in the present embodiment is good.
Embodiment 4
Present embodiments provide a kind of composite corrosion inhibitor, by weight, configured by the composition of following content and form: 500gN-nitrosophenylhydroxylamine, 50g potassium benzoate, 50g zinc salt, 120g hexamethylenetetramine, 50g Sodium hexametaphosphate 99.
The preparation method of a kind of composite corrosion inhibitor that the present embodiment provides is as follows: take 500gN-nitrosophenylhydroxylamine, 50g potassium benzoate, 50g zinc salt, 120g hexamethylenetetramine, 50g Sodium hexametaphosphate 99, put into stainless steel cask and carry out stirring pre-mixing.The composite corrosion inhibitor of pre-mixing is put into pulverizing mill levigate to 500 orders, taking-up composite corrosion inhibitor is put into airtight container and is stored.
Get above-mentioned composite corrosion inhibitor 200g, get E51 epoxy resin and the 5772 epoxy curing agent 4000g of Shanghai Resin Factory Co., Ltd.'s production, after stirring, prepare epoxy coating.Composite corrosion inhibitor can improve the corrosion resistance nature of coating.
Be coated with the Q235B structural carbon steel of the epoxy resin varnish coating not adding inhibiter at 10%H
2sO
4soak through 159h in the aqueous solution, specimen surface produces a large amount of bubble, and matrix metal corrodes.And being coated with the immersion of Q235B structural carbon steel through same time of the coating of adding composite corrosion inhibitor, coating is intact, and metal corrodes.By simultaneous test, can show that the corrosion mitigating effect of the composite corrosion inhibitor in the present embodiment is good.
Embodiment 5
Present embodiments provide a kind of composite corrosion inhibitor, by weight, configured by the composition of following content and form: 20gN-nitrosophenylhydroxylamine, 20g potassium benzoate, 1g zinc nitrate, 20g hexamethylenetetramine, 15g Sodium hexametaphosphate 99.
The preparation method of a kind of composite corrosion inhibitor that the present embodiment provides is as follows: take 20gN-nitrosophenylhydroxylamine, 20g potassium benzoate, 1g zinc nitrate, 20g hexamethylenetetramine, 15g Sodium hexametaphosphate 99, put into stainless steel cask and carry out stirring pre-mixing.The composite corrosion inhibitor of pre-mixing is put into pulverizing mill levigate to 200 orders, taking-up composite corrosion inhibitor is put into airtight container and is stored.
Get above-mentioned composite corrosion inhibitor 50g, put into 12000g simulated seawater, composite corrosion inhibitor can improve the erosion resistance of Q235A structural carbon steel in simulated seawater, inhibition efficiency reaches more than 90%, get and do not add in the equivalent simulated seawater of above-mentioned composite corrosion inhibitor, the erosion resistance of test Q235A structural carbon steel in simulated seawater, in the same time, the occurrence of large-area corrosion of Q235A structural carbon steel.By simultaneous test, can show that the corrosion mitigating effect of the composite corrosion inhibitor in the present embodiment is good.
Embodiment result shows, composite corrosion inhibitor has good corrosion inhibition to ordinary steel iron material in corrosive medium; For the corrosion resistance nature of coating can be improved in coating; Preparation technology is simple, nontoxic, pollution-free.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a composite corrosion inhibitor, it is characterized in that: by weight, configured by the composition of following content and form: 20 ~ 50 parts of cupferros, 5 ~ 30 parts of benzoates, 1 ~ 20 part of zinc salt, 10 ~ 20 parts of hexamethylenetetramines, 0 ~ 15 part of Sodium hexametaphosphate 99.
2. composite corrosion inhibitor according to claim 1, is characterized in that, by weight, configured by the composition of following content and form: 30 ~ 40 parts of cupferros, 10 ~ 20 parts of benzoates, 5 ~ 10 parts of zinc salts, 12 ~ 15 parts of hexamethylenetetramines, 5 ~ 10 parts of Sodium hexametaphosphate 99s.
3. composite corrosion inhibitor according to claim 1 and 2, is characterized in that, described zinc salt is zinc nitrate or zinc sulfate.
4. composite corrosion inhibitor according to claim 1 and 2, is characterized in that, described benzoate is Sodium Benzoate or potassium benzoate.
5. a preparation method for the composite corrosion inhibitor described in any one of Claims 1 to 4, is characterized in that, comprises the following steps: take each component in proportion, levigate to 200 ~ 500 orders further after pre-mixing, to obtain final product.
6. a coating, is characterized in that, includes the composite corrosion inhibitor described in any one of Claims 1 to 4.
Priority Applications (1)
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|---|---|---|---|
| CN201310578267.4A CN103602991B (en) | 2013-11-18 | 2013-11-18 | Compound corrosion inhibitor, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578267.4A CN103602991B (en) | 2013-11-18 | 2013-11-18 | Compound corrosion inhibitor, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103602991A CN103602991A (en) | 2014-02-26 |
| CN103602991B true CN103602991B (en) | 2015-05-13 |
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| WO2024047074A1 (en) | 2022-08-31 | 2024-03-07 | Chemetall Gmbh | Method of pre-treating metallic substrates |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636891A (en) * | 2004-10-26 | 2005-07-13 | 南京工业大学 | Treating method of sea water as circulating cooling water |
| CN102964902A (en) * | 2012-11-21 | 2013-03-13 | 中国科学院金属研究所 | Paint remover as well as preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7879202B2 (en) * | 2003-12-15 | 2011-02-01 | Guardian Industries Corp. | Scratch resistant coated glass article including carbide layer(s) resistant to fluoride-based etchant(s) |
-
2013
- 2013-11-18 CN CN201310578267.4A patent/CN103602991B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636891A (en) * | 2004-10-26 | 2005-07-13 | 南京工业大学 | Treating method of sea water as circulating cooling water |
| CN102964902A (en) * | 2012-11-21 | 2013-03-13 | 中国科学院金属研究所 | Paint remover as well as preparation method and application thereof |
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